Finding the Fourth Proportional to 10,560.62, 15,834.53 and 5,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,560.62 : 15,834.53 = 5,289.50 : x
2. Step 2: Convert to fraction form
   10,560.62/15,834.53 = 5,289.50/x
3. Step 3: Cross multiply
   10,560.62x = 15,834.53 × 5,289.50
4. Step 4: Simplify right side
   10,560.62x = 83,756,640.81
5. Step 5: Solve for x
   x = 83,756,640.81/10,560.62
6. Step 6: Final answer
   x = 7,931.04